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Unit 5A: Keeping Healthy

Any questions for a scientist? Ask your parents to email us! sarah.gundy@nuigalway.ie

Today YOU can use biomaterials to fix a broken heart!

The heart is a muscle in the middle of your chest

It pumps BLOOD full of OXYGEN and nutrients around the body

There are blood vessels in your body that are called and They connect your heart to all of the parts of your body Each time your heart beats, it pumps blood through your blood vessels to all of the parts of your body

carry blood without oxygen to your heart carry blood with oxygen away from your heart

• Your heart beats:
• 100,000 times in one day
• 35 million times in a year
• 2.5 billion times during an average lifetime
• How many years would you have to leave the kitchen

tap running to equal the amount of blood your heart pumps during an average lifetime?

Heart Facts

• Your pulse is blood stopping and starting as it moves

through your arteries

• 90 to 120 beats per minute for kids
• 72 beats per minute for adults
• In general, fitter hearts have lower beats

Your Pulse

Coronary arteries supply the heart with blood and carry oxygen and nutrients

Coronary arteries in red

Sometimes the can get blocked and blood cannot move through them A heart attack happens when blood cannot move through a coronary

Oxygen cannot get to the heart and the heart starts to die Biomedical Engineers can fix the heart with biomaterials

Dying heart turns darker colour

Medical devices are made of biomaterials which help the body heal itself

How do WE keep our hearts healthy?

Right Atrium Right Ventricle Left Atrium Left Ventricle

120cm 120cm

Use blue lines

• n the right

side because the blood does not have

• xygen

Use red lines

• n the left side

because the blood has

• xygen

Right Atrium Right Ventricle Left Atrium Left Ventricle

Right Atrium Right Ventricle Left Atrium Left Ventricle

• Spin the dial
• Place your hand or

foot on the correct chamber of the heart https://wheeldecide.com/wheels /board-games/twister-spinner/

Right Atrium Right Ventricle Left Atrium Left Ventricle

Right Atrium Right Ventricle Left Atrium Left Ventricle

Right Atrium Right Ventricle Left Atrium Left Ventricle

• Gauze
• Glitter glue
• Cling film
• Can you think of

any?

Feel the same as the heart Stretch with the beats of the heart Be easy for the surgeon to put onto the heart

Unit 5A: Keeping Healthy

Send us a photo of your heart and biomaterials! Any questions for a scientist? Ask your parents to email us! sarah.gundy@nuigalway.ie

References:

• 1. Féach thárt: Eolaíocht, Rang 4, An Gúm
• 2. www.kidshealth.org
• 3. Gray’s Anatomy
• 4. Pearson Education
• 5. svgsilh.com/image/1295981.html
• 6. commons.wikimedia.org
• 7. www.medicalgraphics.de

Acknowledgements: Sincere thanks to all of the researchers who gave lectures and generously gave their time throughout the course. Thanks also to all the participating teachers who very kindly shared ideas and resources.

This publication has emanated from research conducted with the financial support of Science Foundation Ireland (SFI) and is co-funded under the European Regional Development Fund under Grant Number 13/RC/2073. This project has been funded by the European Union Seventh Framework Programme under Marie Curie Initial Training Networks (FP7-PEOPLE-2012-ITN) and Grant Agreement Number 317304 (AngioMatTrain). This project has also been funded by the European Union Horizon 2020 Programme (H2020-MSCA-ITN-2015) under the Marie Skłodowska-Curie Innovative Training Networks and Grant Agreement Numbers 676408 (BrainMatTrain) and 676338 (Tendon Therapy Train).